Design of the Transparent and Flexible Metamaterial Cross Polarization Converters

Abstract

In recent years, the metamaterial has become a popular and powerful tool in electromagnetic polarization conversion design, where it is essentially a frequency-dependent anisotropic material. In this paper, we introduced two CPCs. In the microwave band, The PCR spectrum shown that $\text{PCR} >77\%$ in the (7.8-18.2) GHz range (the red region), and $\text{PCR}> 85\%$ in the range of (10-17.8) GHz. In the terahertz band, two-layer split ring structure was designed. It can achieve $\text{PCR}> 0.9$ in the range of (0.155-0.357) THz, the absolute bandwidth is 0.202 THz, and the relative bandwidth is 79%.